Frog Structure & Function Review

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frog dissection

vomerine teeth

teeth for holding prey

maxillary teeth

teeth for holding prey

internal nares

opening for intake of air

tongue

attached in front, retrieves food to back of mouth

eustachian tube

openings leading to tympanic membrane, perceive sound, equalize pressure

glottis

opening at back of mouth, leads to trachea then lungs

gullet

large opening at back of mouth leading from the mouth to the stomach

esophagus

tube like structure leading from the mouth to the stomach

tympanic membrane

round structure behind the eyes, perceives sound

nictitating membrane

covering over the eye

external nares

opening on outside of frog for intake of air

stomach (digestive)

breaks down food

small intestine (digestive)

continued digestion and absorption of nutrients

liver (digestive)

produces bile for break down of fats, storage of glucose, detoxifies

duodenum & pyloric valve

first part of small intestine

gallbladder (digestive)

storage of bile

cloaca (D,R,E)

a chamber that opens to the outside of the body that waste and reproductive cells pass though as they exit the body

pancreas (digestive)

produces hormones and digestive enzymes

mesentery (integumentary)

holds internal organs in place

large intestine (digestive)

reabsorption of water into bloodstream

spleen (lymphatic/immune)

stores, produces, and removes RBC's from blood

oviducts (reproductive)

transports eggs to cloaca

fat bodies

stored fat utilized during periods of metamorphosis or hibernation

kidney (excretory)

filters waste and toxins from the blood

urinary bladder (excretory)

stores liquid waste produced by the kidneys

lung (respiratory)

allows exchange of oxygen and carbon dioxide

ventricle (circulatory)

lower pumping chamber of the heart

atrium (circulatory)

upper receiving chamber of heart

gastrocnemius (muscular)

calf muscle used in swimming and jumping

bone (skeletal)

support

achilles tendon

band of connective tissue that connects calf muscle to bone

stomach lining

many folds allow expansion during feeding and increase surface area for greater chemical digestion

eggs (reproductive)

female gametes

testes (reproductive)

male gonads

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